DE4039857A1 - Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen - Google Patents

Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen

Info

Publication number
DE4039857A1
DE4039857A1 DE4039857A DE4039857A DE4039857A1 DE 4039857 A1 DE4039857 A1 DE 4039857A1 DE 4039857 A DE4039857 A DE 4039857A DE 4039857 A DE4039857 A DE 4039857A DE 4039857 A1 DE4039857 A1 DE 4039857A1
Authority
DE
Germany
Prior art keywords
additive
melt
zone
stream
extruder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE4039857A
Other languages
German (de)
English (en)
Other versions
DE4039857C2 (enrdf_load_stackoverflow
Inventor
Werner Dipl Ing Stibal
Daniel Dipl Ing Boeni
Hans Dipl Chem Dr Lueckert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uhde Inventa Fischer AG
Original Assignee
EMS Inventa AG
Inventa AG fuer Forschung und Patentverwertung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE4039857A priority Critical patent/DE4039857A1/de
Application filed by EMS Inventa AG, Inventa AG fuer Forschung und Patentverwertung filed Critical EMS Inventa AG
Priority to CN91109835A priority patent/CN1035546C/zh
Priority to JP3270670A priority patent/JP2911663B2/ja
Priority to KR1019910018383A priority patent/KR0173125B1/ko
Priority to ITRM910792A priority patent/IT1249461B/it
Priority to US07/780,144 priority patent/US5376702A/en
Priority to TW80108880A priority patent/TW209232B/zh
Publication of DE4039857A1 publication Critical patent/DE4039857A1/de
Application granted granted Critical
Publication of DE4039857C2 publication Critical patent/DE4039857C2/de
Priority to US08/363,984 priority patent/US5458478A/en
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/74—Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder
    • B29C48/745—Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder for plasticising or homogenising devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE4039857A 1990-10-19 1990-12-13 Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen Granted DE4039857A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE4039857A DE4039857A1 (de) 1990-10-19 1990-12-13 Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen
JP3270670A JP2911663B2 (ja) 1990-10-19 1991-10-18 ポリマー溶融液を直接、連続的に変性する方法および装置
KR1019910018383A KR0173125B1 (ko) 1990-10-19 1991-10-18 폴리머용융물을 직접 연속적으로 개질시키는 방법 및 장치
ITRM910792A IT1249461B (it) 1990-10-19 1991-10-18 Procedimento e apparecchio per la modificazione diretta continua di masse polimeriche fuse.
CN91109835A CN1035546C (zh) 1990-10-19 1991-10-18 聚合物熔体直接连续改性的方法及装置
US07/780,144 US5376702A (en) 1990-10-19 1991-10-21 Process and apparatus for the direct and continuous modification of polymer melts
TW80108880A TW209232B (enrdf_load_stackoverflow) 1990-12-13 1991-11-11
US08/363,984 US5458478A (en) 1990-10-19 1994-12-23 Process and apparatus for the direct and continuous modification of polymer melts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033319 1990-10-19
DE4039857A DE4039857A1 (de) 1990-10-19 1990-12-13 Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen

Publications (2)

Publication Number Publication Date
DE4039857A1 true DE4039857A1 (de) 1992-04-23
DE4039857C2 DE4039857C2 (enrdf_load_stackoverflow) 1993-08-19

Family

ID=25897841

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4039857A Granted DE4039857A1 (de) 1990-10-19 1990-12-13 Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen

Country Status (6)

Country Link
US (2) US5376702A (enrdf_load_stackoverflow)
JP (1) JP2911663B2 (enrdf_load_stackoverflow)
KR (1) KR0173125B1 (enrdf_load_stackoverflow)
CN (1) CN1035546C (enrdf_load_stackoverflow)
DE (1) DE4039857A1 (enrdf_load_stackoverflow)
IT (1) IT1249461B (enrdf_load_stackoverflow)

Cited By (16)

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Publication number Priority date Publication date Assignee Title
DE4412969C1 (de) * 1994-04-14 1995-06-22 Inventa Ag PET-Fasern mit verbessertem Bausch und Verfahren zu ihrer Herstellung
US5656700A (en) * 1994-08-19 1997-08-12 Ems--Inventa Ag Process for preparing linear copolyesters containing omega-hydroxycarboxylic acid units
WO1999057348A1 (de) * 1998-04-30 1999-11-11 Ems-Inventa Ag Polyesterfasern und -filamente und verfahren zu deren herstellung
EP0988955A2 (de) 1998-09-10 2000-03-29 Lurgi Zimmer Aktiengesellschaft Verfahren zur Einspeisung von Additiven in einen Polymerschmelzstrom
WO2001090453A1 (de) * 2000-05-25 2001-11-29 Zimmer Ag Verfahren zum herstellen von synthetischen fäden aus einer polymermischung auf polyesterbasis
US6544456B1 (en) * 1998-09-16 2003-04-08 Inventa-Fischer Ag Process of melt-spinning polyester fibers
DE10246153B3 (de) * 2002-10-01 2004-02-12 Zimmer Ag Vorrichtung zum Einspeisen von Additiven in einen Polymerschmelzestrom
DE10049617B4 (de) * 2000-10-05 2005-03-10 Zimmer Ag Vorrichtung zum Vormischen und Einspeisen von Additiven in einen Polymerstrom
WO2005054343A1 (de) * 2003-12-05 2005-06-16 Bayer Materialscience Ag Verfahren zur mischung von polymerschmelzen mit additiven
DE10051578B4 (de) * 1999-10-22 2007-09-06 Invista Technologies S.A.R.L. Verfahren zur Herstellung eines aus der Schmelze ersponnenen Polyesterfaserprodukts und Polyesterfaserprodukt hergestellt nach dem Verfahren
DE102007060338A1 (de) 2007-01-26 2008-07-31 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Beimengen und Einmischen eines Zusatzstoffes in einer Polymerschmelze
DE102008026151A1 (de) * 2008-05-30 2009-12-03 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines gefärbten Garns auf der Basis eines thermoplastischen Kunststoffs
EP2532698A1 (de) 2011-06-08 2012-12-12 Uhde Inventa-Fischer GmbH Verfahren und Vorrichtung zur direkten, kontinuierlichen Modifizierung von Polymerschmelzen
US9561999B2 (en) 2011-07-11 2017-02-07 Uhde Inventa-Fischer Gmbh Method for the production of an aqueous solution of salts
DE102015116724A1 (de) 2015-10-01 2017-04-06 Technip Zimmer Gmbh Verfahren und Vorrichtung zur kontinuierlichen Modifikation einer Polymerschmelze aus unextrahiertem Polyamid 6 mit einem oder mehreren Additiven
DE10045719B4 (de) * 2000-09-15 2018-01-11 Inventa-Fischer Gmbh & Co. Kg Verfahren zur Herstellung von Polyestern mit reduziertem Gehalt an Acetaldehyd

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DE19505680C1 (de) * 1995-02-20 1996-05-23 Inventa Ag Kondensations-Spritzgußverfahren zur Herstellung von Flaschenvorformlingen aus Polyethylenterephthalat und/oder seinen Copolyestern sowie nach diesem Verfahren herstellbare Vorformlinge
DE19608389A1 (de) * 1996-03-05 1997-09-11 Bakelite Ag Verfahren zur Herstellung von duroplastischen Formmassen
DE19617183A1 (de) * 1996-04-29 1997-10-30 Basf Ag Verfahren zur Konfektionierung von Polymerdispersionen
US5847038A (en) * 1996-09-03 1998-12-08 Xerox Corporation Polymer processes
US5945460A (en) * 1997-03-20 1999-08-31 Eastman Chemical Company Process for continuously producing polyester articles with scrap recycle in a continuous melt-to-preform process
AU6763998A (en) * 1997-03-20 1998-10-12 Eastman Chemical Company Process for the modification of a polyester melt used in a continuous melt-to-preform process
DE19935145C2 (de) * 1998-09-16 2002-07-18 Inventa Fischer Ag Zuerich Polyesterfasern und -filamente sowie Verfahren zu deren Herstellung
US6289928B1 (en) 1998-12-04 2001-09-18 Basf Corporation Apparatus and method for direct injection of additives into a polymer melt stream
US6280667B1 (en) 1999-04-19 2001-08-28 Andersen Corporation Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component
US7759449B2 (en) * 2000-12-15 2010-07-20 Wellman, Inc. Methods for introducing additives into polyethylene terephthalate
US6500890B2 (en) 2000-12-15 2002-12-31 Wellman, Inc. Polyester bottle resins having reduced frictional properties and methods for making the same
US6590069B2 (en) 2000-12-15 2003-07-08 Wellman, Inc. Methods of post-polymerization extruder injection in condensation polymer production
ES2236348T3 (es) 2000-12-15 2005-07-16 Wellman, Inc. Procedimientos de inyeccion post-polimerizacion en la produccion de polimeros de condensacion.
US6599596B2 (en) 2000-12-15 2003-07-29 Wellman, Inc. Methods of post-polymerization injection in continuous polyethylene terephthalate production
US6569991B2 (en) 2000-12-15 2003-05-27 Wellman, Inc. Methods of post-polymerization extruder injection in polyethylene terephthalate production
US20030039783A1 (en) 2001-03-30 2003-02-27 Stafford Steven Lee Polyesters and polyester containers having a reduced coefficient of friction and improved clarity
DE10126133B4 (de) * 2001-05-29 2007-03-29 Karl-Heinz Wiltzer Verfahren und Vorrichtung zur Herstellung von hochviskosen oder hochstabilisierten Polykondensaten und entmonomerisiertem PA 6
DE10318108A1 (de) * 2003-04-22 2004-11-11 Bayer Ag Verfahren zur Mischung von Polymerschmelzen mit Additiven
WO2004104080A1 (en) * 2003-05-21 2004-12-02 Wellman, Inc. Slow-crystallizing polyester resins
US7094863B2 (en) * 2003-05-21 2006-08-22 Wellman, Inc. Polyester preforms useful for enhanced heat-set bottles
US20050261462A1 (en) * 2004-05-20 2005-11-24 Nichols Carl S Methods of making titanium-catalyzed polyester resins
US20070059465A1 (en) * 2004-05-20 2007-03-15 Thompson David E Polyester Resins for High-Strength Articles
DE10335863A1 (de) * 2003-08-06 2005-03-03 Clariant Gmbh Kontinuierliches Verfahren zur Herstellung eines Pigment-Masterbatches
CH694291A5 (de) * 2003-11-07 2004-11-15 Inventa Fischer Ag Verfahren zum Direktverformen einer PET- Schmelze zu Mehrschicht-Folien.
DE10357182A1 (de) * 2003-12-06 2005-06-30 Bayer Materialscience Ag Verfahren zum schonenden Eintragen von Additiven, Katalysatoren oder Inhibitoren in Polymerschmelzen
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US7838596B2 (en) * 2005-09-16 2010-11-23 Eastman Chemical Company Late addition to effect compositional modifications in condensation polymers
US9267007B2 (en) 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt
US20070110998A1 (en) * 2005-11-15 2007-05-17 Steele Ronald E Polyamide yarn spinning process and modified yarn
WO2007059128A1 (en) * 2005-11-15 2007-05-24 Wellman, Inc. Alumina-enhanced polyester resins
CN101016411B (zh) * 2006-08-21 2010-05-12 中国神马集团有限责任公司 工程塑料在线改性生产方法
US8901272B2 (en) * 2007-02-02 2014-12-02 Grupo Petrotemex, S.A. De C.V. Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration
US8791225B2 (en) * 2008-06-06 2014-07-29 Dak Americas Mississippi Inc. Titanium-nitride catalyzed polyester
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EP2532698A1 (de) 2011-06-08 2012-12-12 Uhde Inventa-Fischer GmbH Verfahren und Vorrichtung zur direkten, kontinuierlichen Modifizierung von Polymerschmelzen
WO2012168252A1 (de) 2011-06-08 2012-12-13 Uhde Inventa-Fischer Gmbh Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen
US9561999B2 (en) 2011-07-11 2017-02-07 Uhde Inventa-Fischer Gmbh Method for the production of an aqueous solution of salts
DE102015116724A1 (de) 2015-10-01 2017-04-06 Technip Zimmer Gmbh Verfahren und Vorrichtung zur kontinuierlichen Modifikation einer Polymerschmelze aus unextrahiertem Polyamid 6 mit einem oder mehreren Additiven
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CN1035546C (zh) 1997-08-06
ITRM910792A1 (it) 1993-04-18
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US5458478A (en) 1995-10-17
DE4039857C2 (enrdf_load_stackoverflow) 1993-08-19
US5376702A (en) 1994-12-27
CN1060811A (zh) 1992-05-06
JP2911663B2 (ja) 1999-06-23
ITRM910792A0 (it) 1991-10-18
KR920008117A (ko) 1992-05-27
KR0173125B1 (ko) 1999-03-30

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